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//===----------------------------------------------------------*- swift -*-===//
//
// This source file is part of the Swift Argument Parser open source project
//
// Copyright (c) 2020 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
//
//===----------------------------------------------------------------------===//
import XCTest
import ArgumentParserTestHelpers
import ArgumentParser
final class ParsingEndToEndTests: XCTestCase {
}
struct Name {
var rawValue: String
init(rawValue: String) throws {
if rawValue == "bad" {
throw ValidationError("Bad input for name")
}
self.rawValue = rawValue
}
}
extension Array where Element == Name {
var rawValues: [String] {
map { $0.rawValue }
}
}
// MARK: -
fileprivate struct Foo: ParsableCommand {
enum Subgroup: Equatable {
case first(Int)
case second(Int)
static func makeFirst(_ str: String) throws -> Subgroup {
guard let value = Int(str) else {
throw ValidationError("Not a valid integer for 'first'")
}
return .first(value)
}
static func makeSecond(_ str: String) throws -> Subgroup {
guard let value = Int(str) else {
throw ValidationError("Not a valid integer for 'second'")
}
return .second(value)
}
}
@Option(transform: Subgroup.makeFirst)
var first: Subgroup
@Argument(transform: Subgroup.makeSecond)
var second: Subgroup
}
extension ParsingEndToEndTests {
func testParsing() throws {
AssertParse(Foo.self, ["--first", "1", "2"]) { foo in
XCTAssertEqual(foo.first, .first(1))
XCTAssertEqual(foo.second, .second(2))
}
}
func testParsing_Fails() throws {
// Failure inside custom parser
XCTAssertThrowsError(try Foo.parse(["--first", "1", "bad"]))
XCTAssertThrowsError(try Foo.parse(["--first", "bad", "2"]))
XCTAssertThrowsError(try Foo.parse(["--first", "bad", "bad"]))
// Missing argument failures
XCTAssertThrowsError(try Foo.parse(["--first", "1"]))
XCTAssertThrowsError(try Foo.parse(["5"]))
XCTAssertThrowsError(try Foo.parse([]))
}
}
// MARK: -
fileprivate struct Bar: ParsableCommand {
@Option(transform: { try Name(rawValue: $0) })
var firstName: Name = try! Name(rawValue: "none")
@Argument(transform: { try Name(rawValue: $0) })
var lastName: Name?
}
extension ParsingEndToEndTests {
func testParsing_Defaults() throws {
AssertParse(Bar.self, ["--first-name", "A", "B"]) { bar in
XCTAssertEqual(bar.firstName.rawValue, "A")
XCTAssertEqual(bar.lastName?.rawValue, "B")
}
AssertParse(Bar.self, ["B"]) { bar in
XCTAssertEqual(bar.firstName.rawValue, "none")
XCTAssertEqual(bar.lastName?.rawValue, "B")
}
AssertParse(Bar.self, ["--first-name", "A"]) { bar in
XCTAssertEqual(bar.firstName.rawValue, "A")
XCTAssertNil(bar.lastName)
}
AssertParse(Bar.self, []) { bar in
XCTAssertEqual(bar.firstName.rawValue, "none")
XCTAssertNil(bar.lastName)
}
}
func testParsing_Defaults_Fails() throws {
XCTAssertThrowsError(try Bar.parse(["--first-name", "bad"]))
XCTAssertThrowsError(try Bar.parse(["bad"]))
}
}
// MARK: -
fileprivate struct Qux: ParsableCommand {
@Option(transform: { try Name(rawValue: $0) })
var firstName: [Name] = []
@Argument(transform: { try Name(rawValue: $0) })
var lastName: [Name] = []
}
extension ParsingEndToEndTests {
func testParsing_Array() throws {
AssertParse(Qux.self, ["--first-name", "A", "B"]) { qux in
XCTAssertEqual(qux.firstName.rawValues, ["A"])
XCTAssertEqual(qux.lastName.rawValues, ["B"])
}
AssertParse(Qux.self, ["--first-name", "A", "--first-name", "B", "C", "D"]) { qux in
XCTAssertEqual(qux.firstName.rawValues, ["A", "B"])
XCTAssertEqual(qux.lastName.rawValues, ["C", "D"])
}
AssertParse(Qux.self, ["--first-name", "A", "--first-name", "B"]) { qux in
XCTAssertEqual(qux.firstName.rawValues, ["A", "B"])
XCTAssertEqual(qux.lastName.rawValues, [])
}
AssertParse(Qux.self, ["C", "D"]) { qux in
XCTAssertEqual(qux.firstName.rawValues, [])
XCTAssertEqual(qux.lastName.rawValues, ["C", "D"])
}
AssertParse(Qux.self, []) { qux in
XCTAssertEqual(qux.firstName.rawValues, [])
XCTAssertEqual(qux.lastName.rawValues, [])
}
}
func testParsing_Array_Fails() {
XCTAssertThrowsError(try Qux.parse(["--first-name", "A", "--first-name", "B", "C", "D", "bad"]))
XCTAssertThrowsError(try Qux.parse(["--first-name", "A", "--first-name", "B", "--first-name", "bad", "C", "D"]))
}
}
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